<template>
  <div>
    <div class='search'>
      <input v-model='keyword' class='search-input' type="text" placeholder="输入城市名称或拼音" />
    </div>
    <div class="search-content" ref='search' v-show='keyword'>
      <ul>
        <li class='search-item border-bottom' v-for='item of this.list' :key='item.id' @click='handleCityClick(item.name)'>{{item.name}}</li>
        <li class='search-item border-bottom' v-show='hasNoData'>没有找到相关数据</li>
      </ul>
    </div>
  </div>
</template>
<script>
import BScroll from 'better-scroll'
import { mapActions } from 'vuex'
export default {
  name: 'CitySearch',
  props: {
    cities: Object
  },
  data () {
    return {
      keyword: '',
      list: [],
      timer: null
    }
  },
  methods: {
    handleCityClick (city) {
      // this.$store.dispatch('changeCity', city)
      this.changeCity(city)
      this.$router.push('./')
    },
    ...mapActions(['changeCity'])
  },
  computed: {
    hasNoData () {
      return !this.list.length
    }
  },
  watch: {
    keyword () {
      if (this.timer) {
        clearTimeout(this.timer)
      }
      if (!this.keyword) {
        this.list = []
        return
      }
      this.timer = setTimeout(() => {
        const result = []
        for (let i in this.cities) {
          this.cities[i].forEach((value) => {
            if (value.name.indexOf(this.keyword) > -1 || value.spell.indexOf(this.keyword) > -1) {
              result.push(value)
            }
          })
          this.list = result
        }
      }, 100)
    }
  },
  mounted () {
    this.scroll = new BScroll(this.$refs.search)
  }
}

</script>
<style lang="stylus" scoped>
@import '~styles/varibles.styl'
.border-bottom::before{
  border-color:#ccc;
}
.search {
  height: .72rem;
  background: $bgColor;
  padding: .1rem;
}

.search-input {
  width: 100%;
  box-sizing: border-box;
  text-align: center;
  border-radius: .06rem;
  height: .62rem;
  line-height: .62rem;
  color: #666;
  padding: .2rem;
}

.search-content {
  overflow:hidden;
  position: absolute;
  z-index: 1;
  top: 1.78rem;
  left: 0;
  right: 0;
  bottom: 0;
  background:#eee;
}
.search-item{
  line-height:.44rem;
  background:#fff;
  padding-left:.2rem;
}
</style>
